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    • com.avaje.ebeaninternal.server.expression.DefaultExpressionList Maven / Gradle / Ivy

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    package com.avaje.ebeaninternal.server.expression;

import com.avaje.ebean.*;
import com.avaje.ebean.event.BeanQueryRequest;
import com.avaje.ebean.search.Match;
import com.avaje.ebean.search.MultiMatch;
import com.avaje.ebean.search.TextCommonTerms;
import com.avaje.ebean.search.TextQueryString;
import com.avaje.ebean.search.TextSimple;
import com.avaje.ebeaninternal.api.HashQueryPlanBuilder;
import com.avaje.ebeaninternal.api.ManyWhereJoins;
import com.avaje.ebeaninternal.api.SpiExpression;
import com.avaje.ebeaninternal.api.SpiExpressionList;
import com.avaje.ebeaninternal.api.SpiExpressionRequest;
import com.avaje.ebeaninternal.api.SpiExpressionValidation;
import com.avaje.ebeaninternal.api.SpiJunction;
import com.avaje.ebeaninternal.server.deploy.BeanDescriptor;

import java.io.IOException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * Default implementation of ExpressionList.
 */
public class DefaultExpressionList implements SpiExpressionList {

  private static final String AND = " and ";

  protected List list;

  protected final Query query;

  private final ExpressionList parentExprList;

  protected transient ExpressionFactory expr;

  protected String allDocNestedPath;

  /**
   * Set to true for the "Text" root expression list.
   */
  private final boolean textRoot;

  /**
   * Construct for Text root expression list - this handles implicit Bool Should, Must etc.
   */
  public DefaultExpressionList(Query query) {
    this(query, query.getExpressionFactory(), null, new ArrayList(), true);
  }

  public DefaultExpressionList(Query query, ExpressionList parentExprList) {
    this(query, query.getExpressionFactory(), parentExprList);
  }

  DefaultExpressionList(Query query, ExpressionFactory expr, ExpressionList parentExprList) {
    this(query, expr, parentExprList, new ArrayList());
  }

  DefaultExpressionList(Query query, ExpressionFactory expr, ExpressionList parentExprList, List list) {
    this(query, expr, parentExprList, list, false);
  }

  private DefaultExpressionList(Query query, ExpressionFactory expr, ExpressionList parentExprList, List list, boolean textRoot) {
    this.textRoot = textRoot;
    this.list = list;
    this.query = query;
    this.expr = expr;
    this.parentExprList = parentExprList;
  }

  private DefaultExpressionList() {
    this(null, null, null, new ArrayList());
  }

  /**
   * Wrap the expression list as a Junction or top level DefaultExpressionList.
   *
   * @param list       The list of expressions grouped by nested path
   * @param nestedPath The doc store nested path
   * @param type       The junction type (or null for top level expression list).
   * @return A single SpiExpression that has the nestedPath set
   */
  SpiExpression wrap(List list, String nestedPath, Junction.Type type) {

    DefaultExpressionList wrapper = new DefaultExpressionList(query, expr, null, list, false);
    wrapper.setAllDocNested(nestedPath);

    if (type != null) {
      return new JunctionExpression(type, wrapper);
    } else {
      return wrapper;
    }
  }

  void simplifyEntries() {
    for (SpiExpression element : list) {
      element.simplify();
    }
  }

  public void simplify() {
    simplifyEntries();
  }

  /**
   * Write being aware if it is the Top level "text" expressions.
   * 
    
   * If this is the Top level "text" expressions then it detects if explicit or implicit Bool Should, Must etc is required
   * to wrap the expressions.
   * 
    
   * 
    
   * If implicit Bool is required SHOULD is used.
   * 
    
   */
  @Override
  public void writeDocQuery(DocQueryContext context) throws IOException {
    if (!textRoot) {
      writeDocQuery(context, null);

    } else {
      // this is a Top level "text" expressions so we may need to wrap in Bool SHOULD etc.
      if (list.isEmpty()) throw new IllegalStateException("empty expression list?");

      if (allDocNestedPath!=null) context.startNested(allDocNestedPath);
      int size = list.size();

      SpiExpression first = list.get(0);
      boolean explicitBool = first instanceof SpiJunction;
      boolean implicitBool = !explicitBool && size > 1;

      if (implicitBool || explicitBool) {
        context.startBoolGroup();
      }
      if (implicitBool) {
        context.startBoolGroupList(Junction.Type.SHOULD);
      }
      for (int i = 0; i < size; i++) {
        SpiExpression expr = list.get(i);
        if (explicitBool) {
          try {
            ((SpiJunction)expr).writeDocQueryJunction(context);
          } catch (ClassCastException e) {
            throw new IllegalStateException("The top level text() expressions should be all be 'Must', 'Should' or 'Must Not' or none of them should be.", e);
          }
        } else {
          expr.writeDocQuery(context);
        }
      }
      if (implicitBool) {
        context.endBoolGroupList();
      }
      if (implicitBool || explicitBool) {
        context.endBoolGroup();
      }
      if (allDocNestedPath!=null) context.endNested();
    }
  }

  public void writeDocQuery(DocQueryContext context, SpiExpression idEquals) throws IOException {

    if (allDocNestedPath!=null) context.startNested(allDocNestedPath);
    int size = list.size();
    if (size == 1 && idEquals == null) {
      // only 1 expression - skip bool
      list.get(0).writeDocQuery(context);
    } else if (size == 0 && idEquals != null) {
      // only idEquals - skip bool
      idEquals.writeDocQuery(context);
    } else {
      // bool must wrap all the children
      context.startBoolMust();
      if (idEquals != null) {
        idEquals.writeDocQuery(context);
      }
      for (int i = 0; i < size; i++) {
        list.get(i).writeDocQuery(context);
      }
      context.endBool();
    }
    if (allDocNestedPath!=null) context.endNested();
  }

  @Override
  public SpiExpressionList trimPath(int prefixTrim) {
    throw new RuntimeException("Only allowed on FilterExpressionList");
  }

  public List internalList() {
    return list;
  }

  /**
   * Return a copy of the expression list.
   * 
    
   * Each of the expressions are expected to be immutable and safe to reference.
   * 
    
   */
  public DefaultExpressionList copy(Query query) {
    DefaultExpressionList copy = new DefaultExpressionList(query, expr, null);
    copy.list.addAll(list);
    return copy;
  }

  public DefaultExpressionList copyForPlanKey() {
    DefaultExpressionList copy = new DefaultExpressionList();
    for (int i = 0; i < list.size(); i++) {
      copy.list.add(list.get(i).copyForPlanKey());
    }
    return copy;
  }

  @Override
  public Object getIdEqualTo(String idName) {
    // always return null for this expression
    return null;
  }

  /**
   * Return true if one of the expressions is related to a Many property.
   */
  @Override
  public void containsMany(BeanDescriptor desc, ManyWhereJoins whereManyJoins) {

    for (int i = 0; i < list.size(); i++) {
      list.get(i).containsMany(desc, whereManyJoins);
    }
  }

  @Override
  public void validate(SpiExpressionValidation validation) {
    for (int i = 0; i < list.size(); i++) {
      list.get(i).validate(validation);
    }
  }

  @Override
  public Query query() {
    return query;
  }

  @Override
  public Query asOf(Timestamp asOf) {
    return query.asOf(asOf);
  }

  @Override
  public Query asDraft() {
    return query.asDraft();
  }

  @Override
  public Query includeSoftDeletes() {
    return setIncludeSoftDeletes();
  }

  @Override
  public Query setIncludeSoftDeletes() {
    return query.setIncludeSoftDeletes();
  }

  @Override
  public List> findVersions() {
    return query.findVersions();
  }

  @Override
  public List> findVersionsBetween(Timestamp start, Timestamp end) {
    return query.findVersionsBetween(start, end);
  }

  @Override
  public ExpressionList where() {
    return query.where();
  }

  @Override
  public OrderBy order() {
    return query.order();
  }

  @Override
  public OrderBy orderBy() {
    return query.order();
  }

  @Override
  public Query order(String orderByClause) {
    return query.order(orderByClause);
  }

  @Override
  public Query orderBy(String orderBy) {
    return query.order(orderBy);
  }

  @Override
  public Query setOrderBy(String orderBy) {
    return query.order(orderBy);
  }

  @Override
  public Query apply(FetchPath fetchPath) {
    return query.apply(fetchPath);
  }

  @Override
  public int delete() {
    return query.delete();
  }

  @Override
  public int update() {
    return query.update();
  }

  @Override
  public FutureIds findFutureIds() {
    return query.findFutureIds();
  }

  @Override
  public FutureRowCount findFutureCount() {
    return query.findFutureCount();
  }

  @Override
  public FutureRowCount findFutureRowCount() {
    return findFutureCount();
  }

  @Override
  public FutureList findFutureList() {
    return query.findFutureList();
  }

  @Override
  public PagedList findPagedList() {
    return query.findPagedList();
  }

  @Override
  public int findCount() {
    return query.findCount();
  }

  @Override
  public int findRowCount() {
    return findCount();
  }

  @Override
  public List findIds() {
    return query.findIds();
  }

  @Override
  public void findEach(QueryEachConsumer consumer) {
    query.findEach(consumer);
  }

  @Override
  public void findEachWhile(QueryEachWhileConsumer consumer) {
    query.findEachWhile(consumer);
  }

  @Override
  public List findList() {
    return query.findList();
  }

  @Override
  public Set findSet() {
    return query.findSet();
  }

  @Override
  public Map findMap() {
    return query.findMap();
  }

  @Override
  public  Map findMap(String keyProperty, Class keyType) {
    return query.findMap(keyProperty, keyType);
  }

  @Override
  public T findUnique() {
    return query.findUnique();
  }

  @Override
  public ExpressionList filterMany(String prop) {
    return query.filterMany(prop);
  }

  @Override
  public Query select(String fetchProperties) {
    return query.select(fetchProperties);
  }

  @Override
  public Query setDistinct(boolean distinct) {
    return query.setDistinct(distinct);
  }

  @Override
  public Query setFirstRow(int firstRow) {
    return query.setFirstRow(firstRow);
  }

  @Override
  public Query setMaxRows(int maxRows) {
    return query.setMaxRows(maxRows);
  }

  @Override
  public Query setMapKey(String mapKey) {
    return query.setMapKey(mapKey);
  }

  @Override
  public Query setUseCache(boolean useCache) {
    return query.setUseCache(useCache);
  }

  @Override
  public Query setUseQueryCache(boolean useCache) {
    return query.setUseQueryCache(useCache);
  }

  @Override
  public Query setUseDocStore(boolean useDocsStore) {
    return query.setUseDocStore(useDocsStore);
  }

  @Override
  public Query setDisableLazyLoading(boolean disableLazyLoading) {
    return query.setDisableLazyLoading(disableLazyLoading);
  }

  @Override
  public Query setDisableReadAuditing() {
    return query.setDisableReadAuditing();
  }

  @Override
  public ExpressionList having() {
    return query.having();
  }

  @Override
  public ExpressionList add(Expression expr) {
    list.add((SpiExpression) expr);
    return this;
  }

  @Override
  public ExpressionList addAll(ExpressionList exprList) {
    SpiExpressionList spiList = (SpiExpressionList) exprList;
    list.addAll(spiList.getUnderlyingList());
    return this;
  }

  @Override
  public List getUnderlyingList() {
    return list;
  }

  @Override
  public boolean isEmpty() {
    return list.isEmpty();
  }

  @Override
  public void addSql(SpiExpressionRequest request) {

    for (int i = 0, size = list.size(); i < size; i++) {
      SpiExpression expression = list.get(i);
      if (i > 0) {
        request.append(AND);
      }
      expression.addSql(request);
    }
  }

  @Override
  public void addBindValues(SpiExpressionRequest request) {
    for (int i = 0, size = list.size(); i < size; i++) {
      list.get(i).addBindValues(request);
    }
  }

  @Override
  public void prepareExpression(BeanQueryRequest request) {
    for (int i = 0, size = list.size(); i < size; i++) {
      list.get(i).prepareExpression(request);
    }
  }

  /**
   * Calculate a hash based on the expressions but excluding the actual bind
   * values.
   */
  @Override
  public void queryPlanHash(HashQueryPlanBuilder builder) {
    builder.add(DefaultExpressionList.class);
    for (int i = 0, size = list.size(); i < size; i++) {
      list.get(i).queryPlanHash(builder);
    }
  }

  /**
   * Calculate a hash based on the expressions.
   */
  @Override
  public int queryBindHash() {
    int hash = DefaultExpressionList.class.getName().hashCode();
    for (int i = 0, size = list.size(); i < size; i++) {
      hash = hash * 31 + list.get(i).queryBindHash();
    }
    return hash;
  }

  @Override
  public boolean isSameByPlan(SpiExpression other) {
    if (!(other instanceof DefaultExpressionList)) {
      return false;
    }

    DefaultExpressionList that = (DefaultExpressionList) other;
    if (list.size() != that.list.size()) {
      return false;
    }
    for (int i = 0, size = list.size(); i < size; i++) {
      if (!list.get(i).isSameByPlan(that.list.get(i))) {
        return false;
      }
    }
    return true;
  }

  @Override
  public boolean isSameByBind(SpiExpression other) {
    DefaultExpressionList that = (DefaultExpressionList) other;
    if (list.size() != that.list.size()) {
      return false;
    }
    for (int i = 0, size = list.size(); i < size; i++) {
      if (!list.get(i).isSameByBind(that.list.get(i))) {
        return false;
      }
    }
    return true;
  }

  /**
   * Path exists - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonExists(String propertyName, String path) {
    add(expr.jsonExists(propertyName, path));
    return this;
  }

  /**
   * Path does not exist - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonNotExists(String propertyName, String path) {
    add(expr.jsonNotExists(propertyName, path));
    return this;
  }

  /**
   * Equal to expression for the value at the given path in the JSON document.
   */
  @Override
  public ExpressionList jsonEqualTo(String propertyName, String path, Object value) {
    add(expr.jsonEqualTo(propertyName, path, value));
    return this;
  }

  /**
   * Not Equal to - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonNotEqualTo(String propertyName, String path, Object val) {
    add(expr.jsonNotEqualTo(propertyName, path, val));
    return this;
  }

  /**
   * Greater than - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonGreaterThan(String propertyName, String path, Object val) {
    add(expr.jsonGreaterThan(propertyName, path, val));
    return this;
  }

  /**
   * Greater than or equal to - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonGreaterOrEqual(String propertyName, String path, Object val) {
    add(expr.jsonGreaterOrEqual(propertyName, path, val));
    return this;
  }

  /**
   * Less than - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonLessThan(String propertyName, String path, Object val) {
    add(expr.jsonLessThan(propertyName, path, val));
    return this;
  }

  /**
   * Less than or equal to - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonLessOrEqualTo(String propertyName, String path, Object val) {
    add(expr.jsonLessOrEqualTo(propertyName, path, val));
    return this;
  }

  /**
   * Between - for the given path in a JSON document.
   */
  @Override
  public ExpressionList jsonBetween(String propertyName, String path, Object lowerValue, Object upperValue) {
    add(expr.jsonBetween(propertyName, path, lowerValue, upperValue));
    return this;
  }

  @Override
  public ExpressionList eq(String propertyName, Object value) {
    add(expr.eq(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList ieq(String propertyName, String value) {
    add(expr.ieq(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList ne(String propertyName, Object value) {
    add(expr.ne(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList allEq(Map propertyMap) {
    add(expr.allEq(propertyMap));
    return this;
  }

  @Override
  public ExpressionList and(Expression expOne, Expression expTwo) {
    add(expr.and(expOne, expTwo));
    return this;
  }

  @Override
  public ExpressionList between(String propertyName, Object value1, Object value2) {
    add(expr.between(propertyName, value1, value2));
    return this;
  }

  @Override
  public ExpressionList betweenProperties(String lowProperty, String highProperty, Object value) {
    add(expr.betweenProperties(lowProperty, highProperty, value));
    return this;
  }

  @Override
  public ExpressionList contains(String propertyName, String value) {
    add(expr.contains(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList endsWith(String propertyName, String value) {
    add(expr.endsWith(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList ge(String propertyName, Object value) {
    add(expr.ge(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList gt(String propertyName, Object value) {
    add(expr.gt(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList icontains(String propertyName, String value) {
    add(expr.icontains(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList idIn(Object... idValues) {
    add(expr.idIn(idValues));
    return this;
  }

  @Override
  public ExpressionList idIn(List idList) {
    add(expr.idIn(idList));
    return this;
  }

  @Override
  public ExpressionList idEq(Object value) {
    if (query != null && parentExprList == null) {
      query.setId(value);
    } else {
      add(expr.idEq(value));
    }
    return this;
  }

  @Override
  public ExpressionList iendsWith(String propertyName, String value) {
    add(expr.iendsWith(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList ilike(String propertyName, String value) {
    add(expr.ilike(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList in(String propertyName, Query subQuery) {
    add(expr.in(propertyName, subQuery));
    return this;
  }

  @Override
  public ExpressionList in(String propertyName, Collection values) {
    add(expr.in(propertyName, values));
    return this;
  }

  @Override
  public ExpressionList in(String propertyName, Object... values) {
    add(expr.in(propertyName, values));
    return this;
  }

  @Override
  public ExpressionList notIn(String propertyName, Object... values) {
    add(expr.notIn(propertyName, values));
    return this;
  }

  @Override
  public ExpressionList notIn(String propertyName, Collection values) {
    add(expr.notIn(propertyName, values));
    return this;
  }

  @Override
  public ExpressionList notIn(String propertyName, Query subQuery) {
    add(expr.notIn(propertyName, subQuery));
    return this;
  }

  @Override
  public ExpressionList isEmpty(String propertyName) {
    add(expr.isEmpty(propertyName));
    return this;
  }

  @Override
  public ExpressionList isNotEmpty(String propertyName) {
    add(expr.isNotEmpty(propertyName));
    return this;
  }

  @Override
  public ExpressionList exists(Query subQuery) {
    add(expr.exists(subQuery));
    return this;
  }

  @Override
  public ExpressionList notExists(Query subQuery) {
    add(expr.notExists(subQuery));
    return this;
  }

  @Override
  public ExpressionList isNotNull(String propertyName) {
    add(expr.isNotNull(propertyName));
    return this;
  }

  @Override
  public ExpressionList isNull(String propertyName) {
    add(expr.isNull(propertyName));
    return this;
  }

  @Override
  public ExpressionList istartsWith(String propertyName, String value) {
    add(expr.istartsWith(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList le(String propertyName, Object value) {
    add(expr.le(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList exampleLike(Object example) {
    add(expr.exampleLike(example));
    return this;
  }

  @Override
  public ExpressionList iexampleLike(Object example) {
    add(expr.iexampleLike(example));
    return this;
  }

  @Override
  public ExpressionList like(String propertyName, String value) {
    add(expr.like(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList lt(String propertyName, Object value) {
    add(expr.lt(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList not(Expression exp) {
    add(expr.not(exp));
    return this;
  }

  @Override
  public ExpressionList or(Expression expOne, Expression expTwo) {
    add(expr.or(expOne, expTwo));
    return this;
  }

  @Override
  public ExpressionList arrayContains(String propertyName, Object... elementValue) {
    add(expr.arrayContains(propertyName, elementValue));
    return this;
  }

  @Override
  public ExpressionList arrayNotContains(String propertyName, Object... values) {
    add(expr.arrayNotContains(propertyName, values));
    return this;
  }

  @Override
  public ExpressionList arrayIsEmpty(String propertyName) {
    add(expr.arrayIsEmpty(propertyName));
    return this;
  }

  @Override
  public ExpressionList arrayIsNotEmpty(String propertyName) {
    add(expr.arrayIsNotEmpty(propertyName));
    return this;
  }

  @Override
  public ExpressionList raw(String raw, Object value) {
    add(expr.raw(raw, value));
    return this;
  }

  @Override
  public ExpressionList raw(String raw, Object... values) {
    add(expr.raw(raw, values));
    return this;
  }

  @Override
  public ExpressionList raw(String raw) {
    add(expr.raw(raw));
    return this;
  }

  @Override
  public ExpressionList startsWith(String propertyName, String value) {
    add(expr.startsWith(propertyName, value));
    return this;
  }

  @Override
  public ExpressionList match(String propertyName, String search) {
    return match(propertyName, search, null);
  }

  @Override
  public ExpressionList match(String propertyName, String search, Match options) {
    add(expr.textMatch(propertyName, search, options));
    setUseDocStore(true);
    return this;
  }

  @Override
  public ExpressionList multiMatch(String query, String... fields) {
    return multiMatch(query, MultiMatch.fields(fields));
  }

  @Override
  public ExpressionList multiMatch(String query, MultiMatch options) {
    setUseDocStore(true);
    add(expr.textMultiMatch(query, options));
    return this;
  }

  @Override
  public ExpressionList textSimple(String search, TextSimple options) {
    setUseDocStore(true);
    add(expr.textSimple(search, options));
    return this;
  }

  @Override
  public ExpressionList textQueryString(String search, TextQueryString options) {
    setUseDocStore(true);
    add(expr.textQueryString(search, options));
    return this;
  }

  @Override
  public ExpressionList textCommonTerms(String search, TextCommonTerms options) {
    setUseDocStore(true);
    add(expr.textCommonTerms(search, options));
    return this;
  }

  private Junction junction(Junction.Type type) {
    Junction junction = expr.junction(type, query, this);
    add(junction);
    return junction;
  }

  @Override
  public ExpressionList endJunction() {
    return parentExprList == null ? this : parentExprList;
  }

  @Override
  public ExpressionList endAnd() {
    return endJunction();
  }

  @Override
  public ExpressionList endOr() {
    return endJunction();
  }

  @Override
  public ExpressionList endNot() {
    return endJunction();
  }

  @Override
  public Junction and() {
    return conjunction();
  }

  @Override
  public Junction or() {
    return disjunction();
  }

  @Override
  public Junction not() {
    return junction(Junction.Type.NOT);
  }

  @Override
  public Junction conjunction() {
    return junction(Junction.Type.AND);
  }

  @Override
  public Junction disjunction() {
    return junction(Junction.Type.OR);
  }

  @Override
  public Junction must() {
    setUseDocStore(true);
    return junction(Junction.Type.MUST);
  }

  @Override
  public Junction should() {
    setUseDocStore(true);
    return junction(Junction.Type.SHOULD);
  }

  @Override
  public Junction mustNot() {
    setUseDocStore(true);
    return junction(Junction.Type.MUST_NOT);
  }

  @Override
  public String nestedPath(BeanDescriptor desc) {
    // effectively handled by JunctionExpression
    return null;
  }

  /**
   * Set the nested path that all contained expressions share.
   */
  public void setAllDocNested(String allDocNestedPath) {
    this.allDocNestedPath = allDocNestedPath;
  }

  /**
   * Replace the underlying expression list with one organised by nested path.
   */
  public void setUnderlying(List groupedByNesting) {
    this.list = groupedByNesting;
  }

  /**
   * Prepare expressions for document store nested path handling.
   */
  public void prepareDocNested(BeanDescriptor beanDescriptor) {
    PrepareDocNested.prepare(this, beanDescriptor);
  }

  public Object idEqualTo(String idName) {
    if (list.size() == 1) {
      return list.get(0).getIdEqualTo(idName);
    }
    return null;
  }
}
    
    
    
    

    




    
    
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